Skin Infections and Infestations Flashcards
1
Q
What is folliculitis?
A
- follicular erythma or pustules
- can be infectious or non-infectious
2
Q
What is the main cause of recurrent infectious folliculitis?
A
Staph aureus strains expressing PVL
3
Q
What is the main cause of eosiniphilic non-infectious folliculitis?
A
HIV
4
Q
What are the treatments for follliculitis?
A
- antibiotics (flucloxacillin or erythromycin)
- incision and drainage of furuncles
5
Q
What is a furuncle?
A
Deep follicular abcess
6
Q
What is a carbuncle?
A
- furuncle that has involvement with adjacent follicles
- more likely to lead to complications
7
Q
What is PVL?
A
- panton valentine leukocidin
- pore-forming exotoxin
- causes leukocyte destruction and tissue necrosis
- has higher morbidity, mortality and transmissability than other strains of staph
8
Q
What are the 5 risks of acquiring PVL Staph aureus?
A
- close contact
- contaminated items
- crowding
- cleanliness
- cuts and grazes
9
Q
What is the treatment of PVL Staph aureus?
A
- antibiotics (tetracycline)
- chlorhexidine body wash
- nasal mupirocin ointment
- treatment of close contacts
10
Q
What is cellulitis?
A
- infection of lower dermis and subcutaneous tissue
- tender swelling with ill-defined erythma and oedema
11
Q
What are the most common causes of cellulitis?
A
- streptococcus pyogenes
- staphylococcus aureus
12
Q
What is the treatment of cellulitis?
A
Systemic antibiotics
13
Q
What is impetigo?
A
- superficial bacterial infection
- honey-covered crusts overlaying erosion
- often affects face
14
Q
What causes impetigo?
A
- streptococci (non-bullous)
- staphylococci (bullous)
15
Q
What is borreliosis?
A
Lyme disease
